Backend Jobs in United Kingdom
There are 2,856 open Backend jobs in United Kingdom on freehire right now. 629 of them were posted recently. The skills employers ask for most often are api, cloud and java.
Salary
| Currency | Period | 25th | Median | 75th | Postings |
|---|---|---|---|---|---|
| GBP | year | £75,000 | £95,000 | £110,000 | 214 |
| USD | year | $130,000 | $157,500 | $201,250 | 15 |
From postings that disclose pay. Currencies are counted separately, never converted.
Most requested skills
- api 38%
- cloud 29%
- java 27%
- ai 27%
- aws 24%
- python 23%
- microservices 18%
- ci-cd 17%
How the work is done
- Hybrid 522 · 18%
- Remote 286 · 10%
- Onsite 36 · 1%
Visa sponsorship offered in 53% of the 149 postings that state a position on it.
Seniority
- Senior 1,277
- Lead 193
- Staff 135
- Middle 70
- Junior 46
- Principal 36
Who is hiring
- 1000+ employees 234
- 501-1000 employees 139
- 51-200 employees 125
- 11-50 employees 74
- 201-500 employees 20
- 1-10 employees 8
Senior Backend Engineer - Low-Latency Trading (Rust)
Builds low-latency trading services in Rust for institutional clients, focusing on Order Management Systems, exchange gateways, and risk systems while ensuring secure and scalable architecture.
Backend Engineer - Marketing Technology
Build and maintain Proton's marketing technology stack using Python and PHP, integrating systems to improve conversion and user experience while collaborating with cross-functional teams.
Senior Backend Engineer (Payments)
Senior Backend Engineer building and scaling Proton's global payment infrastructure, integrating external providers and optimizing performance for millions of users across encrypted services.
Software Engineer, Developer, Backend – Java – Identity - IAM
Software Engineer, Developer, Backend – Java – Identity - IAM Contract – Until End of December 2026 (Renewable) Rate: £600 per day – Inside IR35 Location: Essex based offices (between Brentwood and Basildon) 4 days a…
Principal Backend Engineer - Java
Principal engineer building scalable Java backend services, microservices, and APIs for financial services clients using AWS, Spring Boot, and Kafka.
Senior Backend Engineer - Java
Senior Backend Engineer – Java Location: London (Hybrid) | Practice Area: Technology & Engineering | Type: Permanent Power the platforms behind modern finance. Shape cloud-native solutions with Java at their core.…
Backend Engineer
Builds and maintains Java/Spring Boot services for scalable retail digital products, focusing on GCP-based data pipelines and third-party integrations to support booking/appointment systems.
Backend Engineer
Build and maintain scalable backend services and APIs using Node.js/TypeScript, collaborating with frontend teams on React-based full-stack applications for FinTech, Healthcare, or SaaS products.
Backend Engineer - Ingestion (Europe/UK timezone)
Build and scale PostHog’s high-throughput event ingestion pipeline handling billions of events daily, using Node.js/Rust, Kafka, PostgreSQL, ClickHouse, and Redis.
Software Engineer, API Backend
Builds and maintains Python-based API backend services for a healthcare-focused data platform.
Senior Backend Engineer - AI-Driven Finance Platform Remote
Build backend services for an AI-driven finance platform, designing APIs and data pipelines around PostgreSQL and ClickHouse in a hybrid/remote-friendly startup.
Lead Backend Engineer (C++ / AI) – Hybrid, Birmingham
Lead a backend engineering team in Birmingham, building scalable C++ services and APIs while driving AI adoption and mentoring engineers.
Senior Laravel Backend Engineer – Remote UK
Senior Laravel backend engineer building scalable APIs and data pipelines for an AI-driven SaaS that analyzes customer conversations.
Remote Python Backend Engineer
Builds Python backend services (Flask/FastAPI) and occasionally contributes to Angular frontends in a UK-based, remote-first team.